Search a number
-
+
921323712979 is a prime number
BaseRepresentation
bin11010110100000110010…
…11000011000111010011
310021002002122002221022201
431122003023003013103
5110043332332303404
61543130020344031
7123364155226645
oct15320313030723
93232078087281
10921323712979
11325805242a8a
1212a685545017
1368b5a482157
1432841402895
1518e745bdca4
hexd6832c31d3

921323712979 has 2 divisors, whose sum is σ = 921323712980. Its totient is φ = 921323712978.

The previous prime is 921323712949. The next prime is 921323713007. The reversal of 921323712979 is 979217323129.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 921323712979 - 231 = 919176229331 is a prime.

It is not a weakly prime, because it can be changed into another prime (921323712949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460661856489 + 460661856490.

It is an arithmetic number, because the mean of its divisors is an integer number (460661856490).

Almost surely, 2921323712979 is an apocalyptic number.

921323712979 is a deficient number, since it is larger than the sum of its proper divisors (1).

921323712979 is an equidigital number, since it uses as much as digits as its factorization.

921323712979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 55.

The spelling of 921323712979 in words is "nine hundred twenty-one billion, three hundred twenty-three million, seven hundred twelve thousand, nine hundred seventy-nine".